Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

Switch: SPFDILMB0MD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
217-301 A Niantic IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 374      
217-302 A Warrensburg IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 374      
217-310 A Macon IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 374      
217-350 A Mount Zion IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 374      
217-360 A Mason City IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 374      
217-615 A Decatur IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 374      
217-619 A Decatur IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 374      
217-646 A Pawnee IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 374      
217-697 A Chatham IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 374      
217-705 A Girard IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 374      
217-717 A Springfield IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 374      
217-718 A Springfield IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 374      
217-901 A Blue Mound IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 374      
217-916 A Waverly IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 374      

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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